题目内容
×4= | ×= | += | ××4= | 2-1.2= |
3.5+5.8= | ×= | 3×1= | 4÷0.5= | 296-63= |
-= | 10-9.9= | 8.2×10= | 0×= | ×36= |
1-= | += | -= | 0.6×10= | 4××4= |
解:
分析:根据小数、分数四则运算的计算法则,直接进行口算即可.
点评:此题考查的目的是使学生牢固掌握小数、分数四则运算的计算法则,并且能够正确熟练地进行口算,提高口算能力.
×4=2; | ×=1; | +=; | ××4= | 2-1.2=0.8; |
3.5+5.8=9.3; | ×=; | 3×1=1; | 4÷0.5=8; | 296-63=233; |
-=; | 10-9.9=0.1; | 8.2×10=82; | 0×=0; | ×36=12; |
1-=; | +=; | -=; | 0.6×10=6; | 4××4=4. |
分析:根据小数、分数四则运算的计算法则,直接进行口算即可.
点评:此题考查的目的是使学生牢固掌握小数、分数四则运算的计算法则,并且能够正确熟练地进行口算,提高口算能力.
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